TWC (AS11351) blocking all NTP?

Mon Feb 3 20:50:03 UTC 2014

>> I was thinking that the ntp.org servers on any particular network are a small set of exceptions to a general rule to rate limit outgoing NTP traffic.
>
> www.pool.ntp.org allows any NTP operator to opt-in to receive NTP traffic should their clock be available and accurate.

I believe you, but I don't believe that the set of ntp.org servers changes 
so rapidly that it is beyond the ability of network operators to handle 
the ones on their own networks as a special case.

Regards,
John Levine, johnl at iecc.com, Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. http://jl.ly